我见过类似的问题，例如调整 iframe 的宽度和高度以适应其中的内容，但我认为我的问题不同。
我在 Iframe 中有一个表格和几个搜索字段，我的搜索是即时的（onkeyup），而不是在我按下按钮之后。
我的问题是我不想每次搜索某些内容时都重新加载 iframe，我只想在搜索某些内容时“过滤”内容。如果有帮助的话，我将数据表用于我的表
我尝试了这段代码，但只有当我重新加载 i 框架时它才有效。我还想保持搜索即时而不添加搜索按钮。
我的 iframe 高度的 js 代码：
document.addEventListener('DOMContentLoaded', function() {
var iframe = document.getElementById("iframeindex");
if (iframe) {
iframe.onload = function() {
iframe.style.height = iframe.contentWindow.document.documentElement.scrollHeight + 'px';
};
}
});
这是搜索js代码：
function applyTextFilter() {
// Volltext-Filter
const volltext = $("#volltext-filter", parent.document);
table.search(volltext.val()).draw();
// Name-Filter
const nameFilter = $("#name-filter", parent.document);
table.columns(1).search(nameFilter.val()).draw();
// Vorname-Filter
const vornameFilter = $("#vorname-filter", parent.document);
table.columns(2).search(vornameFilter.val()).draw();
// Abteilung-Filter
const abteilungFilter = $("#abteilung-filter", parent.document);
table.columns(9).search(abteilungFilter.val()).draw();
}
// Keyup-Event-Listener für alle Filter anwenden
$("#volltext-filter", parent.document).on('keyup', applyTextFilter);
$("#name-filter", parent.document).on('keyup', applyTextFilter);
$("#vorname-filter", parent.document).on('keyup', applyTextFilter);
$("#abteilung-filter", parent.document).on('keyup', applyTextFilter);
// Initiale Anwendung der Filter
applyTextFilter();
我的表格也使用数据表。
您应该在页面与其 iframe 之间使用消息机制。
使用示例：
parent.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>test iframe msg</title>
<style>
iframe {
--sizeH : 20px;
width : 531px;
height : var(--sizeH);
background : darkblue;
border : 0;
padding : 0;
}
</style>
</head>
<body>
<iframe id="my-iFrame" src="Iframe.html" ></iframe>
<script>
const my_iFrame = document.querySelector('#my-iFrame');
window.addEventListener('message', e =>
{
let msg = JSON.parse(e.data);
my_iFrame.style.setProperty('--sizeH', `${msg.h +17}px`);
})
</script>
</body>
</html>
iframe.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<style>
html {font-family: Arial, Helvetica, sans-serif;font-size: 16px;}
table {border-collapse: separate;border-spacing: 1px;background-color: coral;margin: 0;color: black;}
table td {background-color: whitesmoke;padding: .2em .6em;min-width: 4.2em;text-align: center;}
table thead td {padding: .3em .6em;background-color: #3acec2;font-weight: bold;}
table thead td:nth-of-type(1) {width: 10em;}
table caption {font-size: 1.2em;padding: .3em 0;background:coral;}
</style>
</head>
<body>
<script>
const
mTcars =
[ { model: 'Mazda RX4', mpg: 21, cyl: 6, hp: 110, carb: 4 }
, { model: 'Mazda RX4 Wag', mpg: 21, cyl: 6, hp: 110, carb: 4 }
, { model: 'Datsun 710', mpg: 22.8, cyl: 4, hp: 93, carb: 1 }
, { model: 'Hornet 4 Drive', mpg: 21.4, cyl: 6, hp: 110, carb: 1 }
, { model: 'Hornet Sportabout', mpg: 18.7, cyl: 8, hp: 175, carb: 2 }
, { model: 'Valiant', mpg: 18.1, cyl: 6, hp: 105, carb: 1 }
, { model: 'Duster 360', mpg: 14.3, cyl: 8, hp: 245, carb: 4 }
, { model: 'Merc 240D', mpg: 24.4, cyl: 4, hp: 62, carb: 2 }
, { model: 'Merc 230', mpg: 22.8, cyl: 4, hp: 95, carb: 2 }
, { model: 'Merc 280', mpg: 19.2, cyl: 6, hp: 123, carb: 4 }
, { model: 'Merc 280C', mpg: 17.8, cyl: 6, hp: 123, carb: 4 }
, { model: 'Merc 450SE', mpg: 16.4, cyl: 8, hp: 180, carb: 3 }
, { model: 'Merc 450SL', mpg: 17.3, cyl: 8, hp: 180, carb: 3 }
, { model: 'Merc 450SLC', mpg: 15.2, cyl: 8, hp: 180, carb: 3 }
, { model: 'Cadillac Fleetwood', mpg: 10.4, cyl: 8, hp: 205, carb: 4 }
, { model: 'Lincoln Continental', mpg: 10.4, cyl: 8, hp: 215, carb: 4 }
, { model: 'Chrysler Imperial', mpg: 14.7, cyl: 8, hp: 230, carb: 4 }
, { model: 'Fiat 128', mpg: 32.4, cyl: 4, hp: 66, carb: 1 }
, { model: 'Honda Civic', mpg: 30.4, cyl: 4, hp: 52, carb: 2 }
, { model: 'Toyota Corolla', mpg: 33.9, cyl: 4, hp: 65, carb: 1 }
, { model: 'Toyota Corona', mpg: 21.5, cyl: 4, hp: 97, carb: 1 }
, { model: 'Dodge Challenger', mpg: 15.5, cyl: 8, hp: 150, carb: 2 }
, { model: 'AMC Javelin', mpg: 15.2, cyl: 8, hp: 150, carb: 2 }
, { model: 'Camaro Z28', mpg: 13.3, cyl: 8, hp: 245, carb: 4 }
, { model: 'Pontiac Firebird', mpg: 19.2, cyl: 8, hp: 175, carb: 2 }
, { model: 'Fiat X1-9', mpg: 27.3, cyl: 4, hp: 66, carb: 1 }
, { model: 'Porsche 914-2', mpg: 26, cyl: 4, hp: 91, carb: 2 }
, { model: 'Lotus Europa', mpg: 30.4, cyl: 4, hp: 113, carb: 2 }
, { model: 'Ford Pantera L', mpg: 15.8, cyl: 8, hp: 264, carb: 4 }
, { model: 'Ferrari Dino', mpg: 19.7, cyl: 6, hp: 175, carb: 6 }
, { model: 'Maserati Bora', mpg: 15, cyl: 8, hp: 335, carb: 8 }
, { model: 'Volvo 142E', mpg: 21.4, cyl: 4, hp: 109, carb: 2 }
]
, colNames = Object.keys(mTcars[0])
, table = document.body.appendChild(document.createElement('table'));
;
table.createCaption().textContent = 'Motor Trend Cars'
;
let
tHead = table.createTHead()
, tBody = table.createTBody()
, rowX = tHead.insertRow()
;
colNames.forEach(cn => rowX.insertCell().textContent = cn)
;
rowX.cells[2].innerHTML += ' <select id="s_cyl"><option>4</option><option>6</option><option>8</option></select>'
;
showCars();
s_cyl.onchange = showCars;
function showCars() // Table update
{
let sCyl = Number(s_cyl.value);
while (tBody.lastElementChild) // clear
tBody.removeChild(tBody.lastElementChild);
mTcars.filter(({cyl})=>cyl===sCyl).forEach( row =>
{
rowX = tBody.insertRow();
colNames.forEach( cn => rowX.insertCell().textContent = row[cn] );
});
let msg = JSON.stringify( { h: table.clientHeight })
window.parent.postMessage(msg,'*');
}
</script>
</body>
</html>